Não informado. (1923). Agriculture yearbook. U.S. Department of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture Yearbook. Washington: U.S. Department of Agriculture, 1923.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture Yearbook. U.S. Department of Agriculture, 1923.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.